a. Relational algebra statement: Π ID,course_id ( σ dept_name =“Comp...

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Chapter 2, Problem 9PE

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a.

Relational algebra statement:

Π_{ID,course_id}( σ_{dept_name} _=“Comp...

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b.

Relational algebra statement:

∏_{ID,course_id}(student ⋈ takes ⋈ ∏_{course_id}(σ_{dept_name= ‘Comp...}

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